Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 653	$ 113
Accumulated Amortization	(70)	(42)
Accumulated Impairment	(23)
Net Carrying Value	560	71
Rider relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	268
Accumulated Amortization	(5)
Accumulated Impairment	0
Net Carrying Value	$ 263
Weighted Average Remaining Useful Life - Years	15 years
Captains network
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 40
Accumulated Amortization	(10)
Accumulated Impairment	0
Net Carrying Value	$ 30
Weighted Average Remaining Useful Life - Years	1 year
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 204	94
Accumulated Amortization	(44)	(35)
Accumulated Impairment	(23)
Net Carrying Value	$ 137	$ 59
Weighted Average Remaining Useful Life - Years	4 years	3 years
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 120
Accumulated Amortization	(3)
Accumulated Impairment	0
Net Carrying Value	$ 117
Weighted Average Remaining Useful Life - Years	10 years
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 16	$ 16
Accumulated Amortization	(5)	(4)
Accumulated Impairment	0
Net Carrying Value	$ 11	$ 12
Weighted Average Remaining Useful Life - Years	8 years	8 years
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 5	$ 3
Accumulated Amortization	(3)	(3)
Accumulated Impairment	0
Net Carrying Value	2	0
Developed technology
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible asset	$ 31	$ 31

Finite-Lived Intangible Assets, Accumulated Impairment

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
-Paragraph 1
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Topic 350
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Remaining amortization period of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

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-Name Accounting Standards Codification
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